//
//  NSString+RBExtension.h
//  OrderFood
//
//  Created by xiaofang wang on 2018/12/29.
//  Copyright © 2018年 zhiyuan. All rights reserved.
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface NSString (RBExtension)
/**判断一个字符串是否为空*/
+ (BOOL)rb_isEmptyString:(NSString *)str;
@end

NS_ASSUME_NONNULL_END
